What is the sum of the measures of the interior angles of an octagon?
1 Answer
Sep 8, 2016
Explanation:
To calculate the
color(blue)"sum of the interior angles of a polygon" in general use.
color(red)(bar(ul(|color(white)(a/a)color(black)(180^@(n-2))color(white)(a/a)|)))
where n represents the number of sides of the polygon.For an octagon with 8 sides, n = 8
rArr"sum of interior angles"=180^@xx(8-2)
=180^@xx6=1080^@